TV-Series
Description
Helena is a St. Louis-class light cruiser of the Eagle Union, distinguished by long blue hair with purple tints, a prominent ahoge, and pink eyes. Her attire features a sleeveless blue-and-white buttoned dress with side slits worn over a white crop top and black bikini bottom, completed by dark blue thigh-high boots with garters, metal cuffs, and heels. She wears dark blue arm sleeves beneath black elbow-length gloves lined in white, plus a black bulky hair ornament housing her SG radar unit. Her rigging integrates five 152 mm triple gun mounts—one wielded as a handheld weapon—and a 28 mm quad anti-aircraft gun mount on her back.

Historically, Helena participated in pivotal Pacific War battles: torpedoed at Pearl Harbor and later repaired, she fought in the Guadalcanal Campaign before being sunk at the Battle of Kula Gulf on July 6, 1943. These events and the loss of her crew shape her initial personality: reserved, melancholic, and burdened by trauma, often expressing fear of abandonment in dialogue.

Character development manifests through alternate outfits and retrofitting. Her New Year skin reveals increased cheerfulness, while her Party Skin depicts near-complete emotional recovery, replacing sadness with "genuine happiness" attributed to support from the Commander and friends. Post-retrofit, she adopts a more resilient outlook, focusing on living in the present rather than fixating on the future. Victory quotes evolve from self-deprecation to self-encouragement like, "You did a great job, me."

In combat, Helena utilizes the "Radar Scan" ability, applying a 20–40% damage-increasing debuff to enemies every 20 seconds. After retrofitting, this upgrades to "Radar Scan Plus," activating after 16 seconds and boosting her evasion by 5–10% when equipped with an SG Radar. Her retrofit-exclusive skill, "The Wonder of Kula Gulf," reduces her torpedo damage taken by 5–15% and increases evasion for Eagle Union backline ships under specific fleet conditions.

Beyond core narratives, Helena appears in fan-created "XP4 Heroes Coalition" stories, engaging in joint operations against entities called "Emotionless." These depict her in tactical discussions, reconnaissance roles, and social interactions such as tea ceremonies. An alternate version, Helena META, represents a battle-scarred counterpart from a ruined timeline, initially aligned with the antagonistic "Ashes" faction. This variant shares the original’s radar-focused abilities but embodies darker, world-weary traits common to META shipgirls.

Additional trivia notes her shorter stature compared to Brooklyn-class sisters and an inconsistent use of third-person self-references exclusive to non-default skins.